urlmon: The pcbRead parameter for IInternetProtocol::Read is optional, so fix…

urlmon: The pcbRead parameter for IInternetProtocol::Read is optional, so fix the protocol implementation to check for this.

urlmon: The pcbRead parameter for IInternetProtocol::Read is optional, so fix…
25b2bff9 · Rob Shearman · Alexandre Julliard · 9105b64a · 25b2bff9
Commit 25b2bff9 authored Aug 03, 2007 by Rob Shearman Committed by Alexandre Julliard Aug 08, 2007
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Showing with 4 additions and 2 deletions

binding.c dlls/urlmon/binding.c +4 -2

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--- a/dlls/urlmon/binding.c
+++ b/dlls/urlmon/binding.c
@@ -487,12 +487,14 @@ static HRESULT WINAPI ProtocolStream_Read(IStream *iface, void *pv,
    }

    if(read == cb) {
-        *pcbRead = read;
+        if (pcbRead)
+            *pcbRead = read;
        return S_OK;
    }

    This->hres = IInternetProtocol_Read(This->protocol, (PBYTE)pv+read, cb-read, &pread);
-    *pcbRead = read + pread;
+    if (pcbRead)
+        *pcbRead = read + pread;

    if(This->hres == E_PENDING)
        return E_PENDING;